怎么在ReactNative里面使用Typescript

React 2019-03-01

今天来搞一搞怎么搭建一个可以使用Typescript的ReactNative环境好吧，一句废话不多说，直接开始好吧

1.全局安装create-react-native-app

yarn global add create-react-native-app

例如：create-react-native-app  myApp

5.继续安装其他依赖

6.通过tsc --init生成tsconfig.json，或者手动创建一个tsconfig.json，将下面代码拷入该文件

"compilerOptions""module":"es2015""target": "es2015""jsx": "react""rootDir": "src""outDir": "build""allowSyntheticDefaultImports": "noImplicitAny": "sourceMap": "experimentalDecorators": "preserveConstEnums": "allowJs": "noUnusedLocals": "noUnusedParameters": "noImplicitReturns": "skipLibCheck": "moduleResolution":"Node""filesGlob""typings/index.d.ts""src/**/*.ts""src/**/*.tsx""node_modules/typescript/lib/lib.es6.d.ts""types""react""react-dom""react-native""exclude""build""node_modules""jest.config.js""App.js"],"compileOnSave": false

}

7.安装react-native-scripts

yarn add react-native-scripts

8.将package.json中的"scripts"配置清空，并将以下代码替换

"scripts""start": "react-native-scripts start""eject": "react-native-scripts eject""android": "react-native-scripts android""ios": "react-native-scripts ios""test": "node node_modules/jest/bin/jest.js""lint": "tslint src/**/*.ts""tsc": "tsc""clean": "rimraf build""build": "yarn run clean && yarn run tsc --""watch": "yarn run build -- -w""watchAndRunAndroid": "concurrently \"yarn run watch\" \"yarn run android\"""buildRunAndroid": "yarn run build && yarn run watchAndRunAndroid ""watchAndRunIOS": "concurrently \"yarn run watch\" \"yarn run ios\"""buildRunIOS": "yarn run build && yarn run watchAndRunIOS ""watchAndStart": "concurrently \"yarn run watch\" \"yarn run start\"""buildAndStart": "yarn run build && yarn run watchAndStart "

9.将package.json中的"main"配置清空替换为以下代码

"main": "./node_modules/react-native-scripts/build/bin/crna-entry.js"

10.将App.js中代码清空，并将以下代码替换

import App from './build/App' App;

11.创建一个src文件夹，将babel.config.js文件放在src文件夹下，同时在src文件夹下创建一个App.tsx文件，App.tsx文件中代码如下

import React,{ Component } from "react""react-native"export default class App extends Component {
render() {
return(

红牛维生素功能饮料

12.执行yarn buildAndStart即可